Home / 3,892.60-5,831.91-2,135.71

Finding the Fourth Proportional to 3,892.60, 5,831.91 and 2,135.71

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Solution

The fourth proportional to 3,892.60, 5,831.91 and 2,135.71 is: 3,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.60 : 5,831.91 = 2,135.71 : x
  2. Step 2: Convert to fraction form
    3,892.60/5,831.91 = 2,135.71/x
  3. Step 3: Cross multiply
    3,892.60x = 5,831.91 × 2,135.71
  4. Step 4: Simplify right side
    3,892.60x = 12,455,268.51
  5. Step 5: Solve for x
    x = 12,455,268.51/3,892.60
  6. Step 6: Final answer
    x = 3,199.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.